title: Adducts of alcohols with ethers: the rotational spectrum of isopropanol-dimethyl ether.
abstract: The rotational spectra of three isotopologues of the isopropanol-dimethyl ether molecular complex have been measured with pulsed jet Fourier transform microwave spectroscopy. In the complex, isopropanol acts as a proton donor and takes a gauche conformation. The H → D isotopic substitution of the hydroxylic hydrogen participating in the O-H···O hydrogen bond produces an increase of the B and C rotational constants, according to the shrinkage of the O···O distance of about 7 mÅ, underlying and sizing the associated Ubbelohde effect.
authors.affiliation: Dipartimento di Chimica G. Ciamician dell'Università, Via Selmi 2, I-40126 Bologna, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Evangelisti
authors.forename: Federico
authors.initials: F
authors.lastname: Pesci
authors.forename: Walther
authors.initials: W
authors.lastname: Caminati